So, I ran into this guy that was very impressed with himself that he wrote a php script that reads a css file, parses it into a data structure, then prints it out, and that he wrote it in only 20 minutes. I was sitting at o'hare airport waiting for a plane so I decided to impress myself back by writing one in perl shorter, faster and parsing into a fuller data structure. Here it is: 
perl -lne'chomp;@a=split/:/;push@{$h{$1}},[@a]if(/(.+){/../}/)&&
length($a[1]);END{for(keys%h){$h{$_}=~s/$_.*{|\t//g;print"$_ {";
for(@{$h{$_}}){print"    $_->[0] : $_->[1]";}print"}\n"}}' test.css

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In reply to CSS parsing by bageler

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